Housing for rolling-mills



(No Model.) I V J; EYNON.

HOUSING FOR ROLLING MILLS.

No. 379,510; Patented Mar. 13, 1888.

UNITED STATES Prion;

HOUSING FOR ROLLING-MILLS.

SPECIFICATION forming part of Letters Patent No. 379,510, dated March 13, 1888.

Application filed January 10, 1888. Serial No. 260,282. (No model.)

To all whom it may concern:

Be it known that I, J osEPH EYNoN, a citizen of the United States, residing at Mansfield Valley, in the county of Allegheny'and State of Pennsylvania, haveinvented a new and useful Improvement in Housings for Rolling-Mills, of which the following is a specification.

My invention relates to improvements in housings for sheetmetal-rolling mills, and in devices and methods for securing the parts of a broken housing together; and it consists, first, in a housing having recesses on opposite sides, and strengthening keys or straps shrunk into the said recesses; secondly, in the method of securing the parts of the broken housing together, consisting in making countersunk openings or recesses in opposite sides of the detached parts of the housing, and placing binding straps or keys in the said recesses; and my invention further consists in the peculiar construction and combination of devices that will be more fully set forth hereinafter, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is an elevation of a housing embodying my improvements. Fig. 2 is a 'similar view of a broken housing that has been mended by means of myimprovd method. Fig. 3 is a sectional view taken on the line :r x of Fig. 1. Fig. 4 is a detached perspective view of one of the keys or straps.

In Fig. 1, A represents the housing, which is of the usual shape and is made of cast metal. In opposite sides of the housing are formed I- shaped openings or recesses B, which are arranged in the central portion of the housing, where the strain is greatest.

0 represents straps or keys,which are made of steel and are of the same size and shape as the recesses B, and are adapted to fit in the same. In order to apply the said straps or keys to the housing, the former is heated and thereby caused to expand, so as to slightly enlarge the size of the straps or keys, and the keys or straps while hot are placed in the said recesses, and the straps or keys are then allowed to cool and contract, so as to very firmly secure the straps or keys in position in the recesses. The said straps or keys strengthen the housing very materially and enable it to withstand the severe strain to which it is subjected.

In Fig. 2 Irepresent abroken housing which has been mended by my improved method. Housings nearly always break on the line a a (indicated in Fig. 2) at the point where the strain is greatest, and heretofore it has been necessary to throw away the broken parts of the housing when a fracture occurspand to replace the same with an entirely new one at a considerable expense and at a great loss of valuable time.

The object of my invention is to provide a means and method of mending broken housings, so that the same may be rendered fit for use, and this I do by making countersunk recesses, similar to those previously describedfin opposite sides of the housing in the broken parts thereof, and in securing keys or straps O in the said recesses by shrinking them in,as.

in the previous instance. I have a number of housings thus mended now inconstant use in several rolling-mills, and find that the same, after being mended by my improved method,

are as strong and as serviceable as they were originally. In fact, my method of securing the broken parts of the housing togetherrenders the same so strong that it will withstand a greater strain than it Would before being broken. the straps or keys in the form of the letter I, as I have found this form particularly desirable; but it will be understood that I do not confine myself to this particular form of strap or key, as it may be varied without departingfrom the spirit of my invention.

I have herein shown the recesses and p Having thus described my invention, I

claim i 1. A housing having recesses B formed there,-

. in, and straps or keys 0, secured in the said 9 recesses, for the purpose set forth, substantially as described.

2. As a new article of manufacture, ahousing having the recesses B formed therein, and

straps or keys of stronger metal than that of y i which-the housingis composed, said straps or keys being placed in the recesses and secured therein by shrinking them, substantially as described.

3. The method of mending broken housings, In testimony thatI claim the foregoing as my consisting of making communicating recesses own I have hereto affixed my signature in pres- B in the broken parts of the housing and placence of two Witnesses.

ing straps or keys 0 in the said recesses, sub- 5 stantially as described. JOSEPH EYN ON.

4. Ahousing having recesses B formed therein, and straps or keys 0, secured in the said W'itnesses:

recesses by shrinking the said straps or keys, \VILLIAM H. RICHARDS,

the latter being made substantially in the form CHARLES H. WHITEHOUSE.

IO of the letter I, as set forth. 

